/Engine/Plugins/Animation/IKRig/Source/IKRigEditor/Public/RigEditor/IKRigController.h
Renamed the given Chain. Returns the new name (same as old if unsuccessful).
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, BlueprintPure=false, Category=IKRig) [FName](API\Runtime\Core\UObject\FName) RenameRetargetChain ( const [FName](API\Runtime\Core\UObject\FName) ChainName, const [FName](API\Runtime\Core\UObject\FName) NewChainName ) const